55213553455 has 8 divisors (see below), whose sum is σ = 66258020304. Its totient is φ = 44169672000.

The previous prime is 55213553453. The next prime is 55213553459. The reversal of 55213553455 is 55435531255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55213553455 - 2¹ = 55213553453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213553453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98355 + ... + 346555.

It is an arithmetic number, because the mean of its divisors is an integer number (8282252538).

Almost surely, 2^55213553455 is an apocalyptic number.

55213553455 is a deficient number, since it is larger than the sum of its proper divisors (11044466849).

55213553455 is a wasteful number, since it uses less digits than its factorization.

55213553455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292697.

The product of its digits is 1125000, while the sum is 43.

The spelling of 55213553455 in words is "fifty-five billion, two hundred thirteen million, five hundred fifty-three thousand, four hundred fifty-five".